in england thought, gee whiz, who is the von neumann? and so it was really in the harvard environment that all this kind of solidified -- >> uh-huh. >> and later, and this is a story i tell in my book, i'm undoubtedly the most mathematically ill literate economist on the planet. >> i think that's fascinating. >> i could no more pass general exams for a ph.d. in mathematics than fly. and there's a reason for it. directly -- my father, although he never knew it, was responsible for this great irony. because when i went to harvard the first term, i took calculus 1a, and that was fine, it was okay. it wasn't my most exciting course, but it wasn't my hardest one either. and i fully intended to go on to calculus 1b, but one day harvard in those days had a sort of month between terms, and i was walking down a hallway somewhere, and i ran into the chairman of the harvard mathematics department who was a very well known mathematician in his own right and, actually, had published a paper or two with my father. and i'm sure he thought he was just m